Phrase guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
No pronunciation record was provided for this word.
noun
The ratio of the volume between the cylinder head of an internal combustion engine and the piston before and after the compression stroke.
Definition source: English Wiktionary via Wiktextract
Topics: automotive, transport, vehicles
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
The ratio of the size of compressed data to the size of the original uncompressed data.
Definition source: English Wiktionary via Wiktextract
Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
No etymology was provided for this word.
Across languages
4 source translations are retained for this English entry.
